12001135540016 has 20 divisors (see below), whose sum is σ = 26573942981712. Its totient is φ = 5143343802816.

The previous prime is 12001135539961. The next prime is 12001135540081. The reversal of 12001135540016 is 61004553110021.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53576497835 + ... + 53576498058.

Almost surely, 2^{12001135540016} is an apocalyptic number.

12001135540016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12001135540016 is an abundant number, since it is smaller than the sum of its proper divisors (14572807441696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12001135540016 is a wasteful number, since it uses less digits than its factorization.

12001135540016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107152995908 (or 107152995902 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 29.

Adding to 12001135540016 its reverse (61004553110021), we get a palindrome (73005688650037).

The spelling of 12001135540016 in words is "twelve trillion, one billion, one hundred thirty-five million, five hundred forty thousand, sixteen".